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A small washout approximately V deep is located near the center of the system. At the <br />time of turnover, this area will be filled v/ith original topsoil by turning the soil over into <br />the washout. <br />The so'is at a depth of 12" have a percolation rate averaging 4.2 mpi. <br />A pumping chamber will need to be installed to lift the effluent to the treatment area. <br />The power supply and switches must be located outside the manhole and pumping <br />chamber in a weather proof enclosure. A warning device must be installed with a light <br />and sound device, this is in case of a pump failure. <br />The existing supply line exits the house above the basement floor with a pump in the <br />lower level. The proposal is to abandon the pump and flow gravity from the lower level, <br />The manifold and supply line pipe must have back drainage to the pumping chamber. <br />The distribution pipes shall have their ends capped. Be sure the rock and sand fill <br />material are clean. The sod layer below the entire mounded area must be turned over, <br />just break up the sod, be sure not to over work. <br />The existing tanks will need to be abandoned, pumped and filled with soil. <br />All neighboring wells are located greater than 100' away from the proposed treatment <br />area. <br />Keep all heavy equipment off of the proposed treatment area before and after <br />construction. The treatment area should be marked off before construction. This <br />Design is not valid & the system will need to be relocated If failure to protect the areas <br />proposed for On-Site Sewage Treatment occurs. <br />With proper installation and maintenance, this system should have no problem in <br />treating septic effluent effectively. <br />n <br />iT.